option = {
  color: ['#f006', '#FFD48A'],
  legend: {},
  xAxis: {
    data: ['a', 'b', 'c', 'd']
  },
  yAxis: {},
  grid: {
    left: 40,
    right: 10
  },
  series: [
    {
      type: 'pictorialBar',
      name: '测试',
      symbol: 'rect',
      symbol: 'image://https://img95.699pic.com/xsj/2t/6j/fw.jpg!/fh/300',
       symbolSize: ['100%',"100%" ],
      itemStyle: {
        borderRadius: 50
      },
      z: 10,
      barWidth: 40, //柱体宽度
      data: [10, 250, 53, 25]
    }
  ]
};